West Sunbury, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Sunbury, a borough in Butler County, Pennsylvania.
Today
83°F
Patchy Fog then Sunny
Patchy fog between 9am and 10am. Sunny, with a high near 83. Southeast wind around 2 mph.
7-day forecast for West Sunbury
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Patchy Fog then Sunny | 2 mph SE | 0% |
| Tonight | 62°F | Mostly Clear | 3 mph SE | 0% |
| Wednesday | 85°F | Partly Sunny then Scattered Showers And Thunderstorms | 5 mph SE | 42% |
| Wednesday Night | 65°F | Scattered Showers And Thunderstorms | 2 mph SE | 50% |
| Thursday | 84°F | Showers And Thunderstorms Likely | 2 to 6 mph S | 65% |
| Thursday Night | 65°F | Showers And Thunderstorms Likely | 5 mph SW | 65% |
| Friday | 83°F | Showers And Thunderstorms | 6 mph SW | 85% |
| Friday Night | 64°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 85% |
| Saturday | 83°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 42% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 5 mph SW | 42% |
| Sunday | 85°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 23% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph SW | 27% |
| Monday | 85°F | Chance Rain Showers | 6 to 9 mph SW | 44% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 3 to 7 mph W | 49% |
Forecast source: National Weather Service (api.weather.gov) for West Sunbury (41.006, -79.896). Updated through the day.
Growing snapshot for West Sunbury
Last spring frost
May 7
First fall frost
Oct 14
Growing season
158 days
Hardiness zone
6a
More local growing data for West Sunbury: nearby ZIP 16061 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Boyers
Bruin
Butler
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Renfrew
Climate data from the nearest NOAA station, Slippery Rock 1 Ssw, Pa (9.8 mi from West Sunbury). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.